A64 - Steels for gas containers
The strength of these gas containers remains constant, even after heat treatment of the welds, thereby guaranteeing safety.
Last update: 2019-06-14
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Available grades:
Properties
Steels for gas containers are a specific category of steels for pressure vessels. These steels are deep drawable and non-ageing.
Advantages
Steels for gas containers have very good weldability and excellent toughness. Their strength remains constant, even after heat treatment of the welds (normalisation or stress-relief annealing). This property guarantees the safety of the gas containers.
Applications
These grades are used for the production of gas containers according to the following process: top and bottom are cold formed, welded (SAW) and normalised.
Brand correspondence
Full table
EN 10120:2017
JIS G3116:1991
Old brand names
P245NB EN 10120
P245NB
SG 255
BZ 37
P265NB EN 10120
P265NB
SG 295
BZ 42
P310NB EN 10120
P310NB
SG 325
P355NB EN 10120
P355NB
SG 365
P245NB EN 10120
P245NB EN 10120
EN 10120:2017
P245NB
JIS G3116:1991
SG 255
Old brand names
BZ 37
P265NB EN 10120
P265NB EN 10120
EN 10120:2017
P265NB
JIS G3116:1991
SG 295
Old brand names
BZ 42
P310NB EN 10120
P310NB EN 10120
EN 10120:2017
P310NB
JIS G3116:1991
SG 325
Old brand names
P355NB EN 10120
P355NB EN 10120
EN 10120:2017
P355NB
JIS G3116:1991
SG 365
Old brand names
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Dimensions
Pickled
Full table
Thickness (mm)
Min width
P245NB EN 10120, P265NB EN 10120
P310NB EN 10120
P355NB EN 10120
Max width
Max width
Max width
1.50 ≤ th < 1.70
800
1260
-
-
1.70 ≤ th < 1.80
1360
1250
1.80 ≤ th < 1.90
1460
1200
1.90 ≤ th < 2.00
1520
1310
2.00 ≤ th < 2.10
1620
1440
1370
2.10 ≤ th < 2.20
1660
1430
2.20 ≤ th < 2.30
1720
1510
1500
2.30 ≤ th < 2.40
1780
1530
2.40 ≤ th < 2.50
1840
1550
1560
2.50 ≤ th < 2.60
1900
1590
2.60 ≤ th < 2.70
2070
1620
2.70 ≤ th < 2.80
1650
2.80 ≤ th < 2.90
1680
2.90 ≤ th < 3.00
2130
1710
3.00 ≤ th < 3.10
1680
2040
3.10 ≤ th < 3.50
2070
3.50 ≤ th < 4.50
1790
4.50 ≤ th < 5.00
1900
Other options exist for cold rolled grades; see data sheet B64.
P245NB EN 10120
P245NB EN 10120
Thickness (mm)
Min width
Max width
1.50 ≤ th < 1.70
800
1260
1.70 ≤ th < 1.80
1360
1.80 ≤ th < 1.90
1460
1.90 ≤ th < 2.00
1520
2.00 ≤ th < 2.10
1620
2.10 ≤ th < 2.20
1660
2.20 ≤ th < 2.30
1720
2.30 ≤ th < 2.40
1780
2.40 ≤ th < 2.50
1840
2.50 ≤ th < 2.60
1900
2.60 ≤ th < 2.70
2070
2.70 ≤ th < 2.80
2.80 ≤ th < 2.90
2.90 ≤ th < 3.00
2130
3.00 ≤ th < 3.10
3.10 ≤ th < 3.50
3.50 ≤ th < 4.50
4.50 ≤ th < 5.00
P265NB EN 10120
P265NB EN 10120
Thickness (mm)
Min width
Max width
1.50 ≤ th < 1.70
800
1260
1.70 ≤ th < 1.80
1360
1.80 ≤ th < 1.90
1460
1.90 ≤ th < 2.00
1520
2.00 ≤ th < 2.10
1620
2.10 ≤ th < 2.20
1660
2.20 ≤ th < 2.30
1720
2.30 ≤ th < 2.40
1780
2.40 ≤ th < 2.50
1840
2.50 ≤ th < 2.60
1900
2.60 ≤ th < 2.70
2070
2.70 ≤ th < 2.80
2.80 ≤ th < 2.90
2.90 ≤ th < 3.00
2130
3.00 ≤ th < 3.10
3.10 ≤ th < 3.50
3.50 ≤ th < 4.50
4.50 ≤ th < 5.00
P310NB EN 10120
P310NB EN 10120
Thickness (mm)
Min width
Max width
1.50 ≤ th < 1.70
800
-
1.70 ≤ th < 1.80
1250
1.80 ≤ th < 1.90
1.90 ≤ th < 2.00
2.00 ≤ th < 2.10
1440
2.10 ≤ th < 2.20
2.20 ≤ th < 2.30
1510
2.30 ≤ th < 2.40
2.40 ≤ th < 2.50
1550
2.50 ≤ th < 2.60
2.60 ≤ th < 2.70
2.70 ≤ th < 2.80
2.80 ≤ th < 2.90
2.90 ≤ th < 3.00
3.00 ≤ th < 3.10
1680
3.10 ≤ th < 3.50
3.50 ≤ th < 4.50
1790
4.50 ≤ th < 5.00
1900
P355NB EN 10120
P355NB EN 10120
Thickness (mm)
Min width
Max width
1.50 ≤ th < 1.70
-
-
1.70 ≤ th < 1.80
800
1.80 ≤ th < 1.90
1200
1.90 ≤ th < 2.00
1310
2.00 ≤ th < 2.10
1370
2.10 ≤ th < 2.20
1430
2.20 ≤ th < 2.30
1500
2.30 ≤ th < 2.40
1530
2.40 ≤ th < 2.50
1560
2.50 ≤ th < 2.60
1590
2.60 ≤ th < 2.70
1620
2.70 ≤ th < 2.80
1650
2.80 ≤ th < 2.90
1680
2.90 ≤ th < 3.00
1710
3.00 ≤ th < 3.10
2040
3.10 ≤ th < 3.50
2070
3.50 ≤ th < 4.50
4.50 ≤ th < 5.00
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Other options exist for cold rolled grades; see data sheet B64.
Mechanical properties
Full table
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
A 5.65√So (%)
P245NB EN 10120
T
1.5 - 3
≥ 245
360 - 450
≥ 26
-
3 - 5
-
≥ 34
P265NB EN 10120
T
1.5 - 3
≥ 265
410 - 500
≥ 24
-
3 - 5
-
≥ 32
P310NB EN 10120
T
1.5 - 3
≥ 310
460 - 550
≥ 21
-
3 - 5
-
≥ 28
P355NB EN 10120
T
1.7 - 3
≥ 355
510 - 620
≥ 19
-
3 - 5
-
≥ 24
All mechanical properties are guaranteed in normalised or normalised rolled condition.
P245NB EN 10120
Direction
Thickness (mm)
P245NB EN 10120
Re (MPa)
T
1.5 - 5
≥ 245
Rm (MPa)
T
1.5 - 5
360 - 450
A80 (%)
T
1.5 - 3
≥ 26
A 5.65√So (%)
T
3 - 5
≥ 34
P265NB EN 10120
Direction
Thickness (mm)
P265NB EN 10120
Re (MPa)
T
1.5 - 5
≥ 265
Rm (MPa)
T
1.5 - 5
410 - 500
A80 (%)
T
1.5 - 3
≥ 24
A 5.65√So (%)
T
3 - 5
≥ 32
P310NB EN 10120
Direction
Thickness (mm)
P310NB EN 10120
Re (MPa)
T
1.5 - 5
≥ 310
Rm (MPa)
T
1.5 - 5
460 - 550
A80 (%)
T
1.5 - 3
≥ 21
A 5.65√So (%)
T
3 - 5
≥ 28
P355NB EN 10120
Direction
Thickness (mm)
P355NB EN 10120
Re (MPa)
T
1.7 - 5
≥ 355
Rm (MPa)
T
1.7 - 5
510 - 620
A80 (%)
T
1.7 - 3
≥ 19
A 5.65√So (%)
T
3 - 5
≥ 24
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Next grade
All mechanical properties are guaranteed in normalised or normalised rolled condition.
Chemical composition
Full table
C (%)
Mn (%)
P (%)
S (%)
Si (%)
Al (%)
Nb (%)
Ti (%)
N (%)
P245NB EN 10120
≤ 0.160
≥ 0.30
≤ 0.025
≤ 0.015
≤ 0.25
≥ 0.020
≤ 0.050
≤ 0.030
≤ 0.009
P265NB EN 10120
≤ 0.190
≥ 0.40
≤ 0.025
≤ 0.015
≤ 0.25
≥ 0.020
≤ 0.050
≤ 0.030
≤ 0.009
P310NB EN 10120
≤ 0.200
≥ 0.70
≤ 0.025
≤ 0.015
≤ 0.50
≥ 0.020
≤ 0.050
≤ 0.030
≤ 0.009
P355NB EN 10120
≤ 0.200
≥ 0.70
≤ 0.025
≤ 0.015
≤ 0.50
≥ 0.020
≤ 0.050
≤ 0.030
≤ 0.009
The chemical properties given are based on cast analysis data.
P245NB EN 10120
P245NB EN 10120
C (%)
≤ 0.160
Mn (%)
≥ 0.30
P (%)
≤ 0.025
S (%)
≤ 0.015
Si (%)
≤ 0.25
Al (%)
≥ 0.020
Nb (%)
≤ 0.050
Ti (%)
≤ 0.030
N (%)
≤ 0.009
P265NB EN 10120
P265NB EN 10120
C (%)
≤ 0.190
Mn (%)
≥ 0.40
P (%)
≤ 0.025
S (%)
≤ 0.015
Si (%)
≤ 0.25
Al (%)
≥ 0.020
Nb (%)
≤ 0.050
Ti (%)
≤ 0.030
N (%)
≤ 0.009
P310NB EN 10120
P310NB EN 10120
C (%)
≤ 0.200
Mn (%)
≥ 0.70
P (%)
≤ 0.025
S (%)
≤ 0.015
Si (%)
≤ 0.50
Al (%)
≥ 0.020
Nb (%)
≤ 0.050
Ti (%)
≤ 0.030
N (%)
≤ 0.009
P355NB EN 10120
P355NB EN 10120
C (%)
≤ 0.200
Mn (%)
≥ 0.70
P (%)
≤ 0.025
S (%)
≤ 0.015
Si (%)
≤ 0.50
Al (%)
≥ 0.020
Nb (%)
≤ 0.050
Ti (%)
≤ 0.030
N (%)
≤ 0.009
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Next grade
The chemical properties given are based on cast analysis data.
All details provided in the ArcelorMittal Flat Carbon Europe S.A. catalogue are for information purposes only. ArcelorMittal Flat Carbon Europe S.A. reserves the right to change its product range at any time without prior notice.
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